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Product details

Parameters

Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.05 Vin (Max) (V) 5.5 Vin (Min) (V) 1.8 Vout (Max) (V) 2.5 Vout (Min) (V) 1.22 Fixed output options (V) 1.5, 1.6, 1.8 Noise (uVrms) 90 Iq (Typ) (mA) 0.28 Thermal resistance θJA (°C/W) 66 Approx. price (US$) 0.41 | 1ku Load capacitance (Min) (µF) 0.1 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 8 Dropout voltage (Vdo) (Typ) (mV) 50 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Linear regulators (LDO)

Features

  • 50-mA LDO
  • Available in 1.5-V, 1.6-V, and 1.8-V Fixed-Output and Adjustable Versions
  • Low Input Voltage Requirement (Down to 1.8 V)
  • Small Output Capacitor, 0.1-uF
  • Dropout Voltage Typically 50 mV at 50 mA
  • Less Than 1 uA Quiescent Current in Shutdown Mode
  • Thermal Protection
  • Over Current Limitation
  • 5-Pin SOT-23 (DBV) Package
  • APPLICATIONS
    • Portable Communication Devices
    • Battery Powered Equipment
    • PCMCIA Cards
    • Personal Digital Assistants
    • Modems
    • Bar Code Scanners
    • Backup Power Supplies
    • SMPS Post Regulation
    • Internet Audio

open-in-new Find other Linear regulators (LDO)

Description

The TPS722xx family of LDO regulators is available in fixed voltage options that are commonly used to power the latest DSP’s and microcontrollers with an adjustable option ranging from 1.22 V to 2.5 V. These regulators can be used in a wide variety of applications ranging from portable, battery-powered equipment to PC peripherals. The family features operation over a wide range of input voltages (1.8 V to 5.5 V) and low dropout voltage (50 mV at full load). Therefore, compared to many other regulators that require 2.5-V or higher input voltages for operation, these regulators can be operated directly from two AAA batteries. Also, the typical quiescent current (ground pin current) is low, starting at 85 uA during normal operation and 1 uA in shutdown mode. Thus, these regulators can be operated very efficiently and, in a battery-powered application, help extend the longevity of the device.

Similar LDO regulators require 1-uF or larger output capacitors for stability. However, this regulator uses an internal compensation scheme that stabilizes the feedback loop over the full range of input voltages and load currents with output capacitances as low as 0.1-uF. Ceramic capacitors of this size are relatively inexpensive and available in small footprints.

This family of regulators is particularly suited as a portable power supply solution due to its minimal board space requirement and 1.8-V minimum input voltage. Being able to use two off-the-shelf, AAA, batteries makes system design easier and also reduces component cost. Moreover, the solution will be more efficient than if a regulator with a higher input voltage is used.

open-in-new Find other Linear regulators (LDO)
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Technical documentation

= Featured
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet Low Input Voltage, Cap-Free 50-mA Low-Dropout Linear Regulators datasheet (Rev. B) Apr. 22, 2002
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Application notes LDO Noise Demystified (Rev. A) Aug. 09, 2017
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
User guides DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) Jun. 02, 2005

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$5.00
EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS76901EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76901 SOT-23 LDO in an application to regulate from 5 V to a selectable output. The EVM includes input and output capacitors.

Features

Same size and TO-220 package. Simplifies designing of the power supply for the core power of low-power TMS320C54x digital signal processors (DSPs).

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS76918EVM-127 give designer an easy layout for using and evaluating TPS76918 SOT23 LDO in an application to regulate from 5V to a 1.8V output. It includes input and output capacitors.

Features

Same size and TO220 package. Simplifies designing the core power power supply for low power TMS320C54x DSPs.

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS76933EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76933 SOT-23 LDO in an application to regulate from 5 V to a 3.3-V output. The EVM includes input and output capacitors.

Features

Same size and TO-220 package. Simplifies designing the power supply for the core power of low-power TMS320C54x digital signal processors (DSPs).

EVALUATION BOARDS Download
document-generic User guide
$49.00
EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The purpose of this EVM is to facilitate evaluation of the TPS793xx family of LDO regulators. Each EVM package contains one SLVP191 test board, with either a TPS79301DBV linear regulator or a TPS79328DBV linear regulator, as well as supporting passive components. The TPS79301DBV adjustable device (...)

Reference designs

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TIDM-RF430FRLSENSE This reference design provides a platform to evaluate the RF430FRL152H NFC Sensor Interface Transponder.  Directly out of the box, thermistor and photo transistor measurements can be communicated to an NFC enabled smart phone or other NFC/RFID Reader device.  This reference design can be (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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